CVE-2023-52774
Assigner: Linux
Published: 2024-05-21T15:30:55.593Z
State: PUBLISHED
descriptions: value: In the Linux kernel, the following vulnerability has been resolved:

s390/dasd: protect device queue against concurrent access

In dasd_profile_start() the amount of requests on the device queue are
counted. The access to the device queue is unprotected against
concurrent access. With a lot of parallel I/O, especially with alias
devices enabled, the device queue can change while dasd_profile_start()
is accessing the queue. In the worst case this leads to a kernel panic
due to incorrect pointer accesses.

Fix this by taking the device lock before accessing the queue and
counting the requests. Additionally the check for a valid profile data
pointer can be done earlier to avoid unnecessary locking in a hot path.
affected: product: Linux
vendor: Linux
defaultStatus: unaffected
repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
versions: version: 4fa52aa7a82f
lessThan: ebdc569a07a3
status: affected
versionType: git
version: 4fa52aa7a82f
lessThan: f75617cc8df4
status: affected
versionType: git
version: 4fa52aa7a82f
lessThan: f1ac7789406e
status: affected
versionType: git
version: 4fa52aa7a82f
lessThan: c841de6247e9
status: affected
versionType: git
version: 4fa52aa7a82f
lessThan: 6062c527d040
status: affected
versionType: git
version: 4fa52aa7a82f
lessThan: dc96fde8fcb2
status: affected
versionType: git
version: 4fa52aa7a82f
lessThan: 9372aab5d0ff
status: affected
versionType: git
version: 4fa52aa7a82f
lessThan: db46cd1e0426
status: affected
versionType: git
product: Linux
vendor: Linux
defaultStatus: affected
repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
versions: version: 3.1
status: affected
version: 0
lessThan: 3.1
status: unaffected
versionType: custom
version: 4.14.332
lessThanOrEqual: 4.14.*
status: unaffected
versionType: custom
version: 4.19.301
lessThanOrEqual: 4.19.*
status: unaffected
versionType: custom
version: 5.4.263
lessThanOrEqual: 5.4.*
status: unaffected
versionType: custom
version: 5.10.203
lessThanOrEqual: 5.10.*
status: unaffected
versionType: custom
version: 5.15.141
lessThanOrEqual: 5.15.*
status: unaffected
versionType: custom
version: 6.1.65
lessThanOrEqual: 6.1.*
status: unaffected
versionType: custom
version: 6.6.4
lessThanOrEqual: 6.6.*
status: unaffected
versionType: custom
version: 6.7
lessThanOrEqual: *
status: unaffected
versionType: original_commit_for_fix
title: s390/dasd: protect device queue against concurrent access
x_generator: engine: bippy-d175d3acf727